AMD Radeon Pro 555 vs NVIDIA Tesla C870

Table of Contents

Graphics Processor

GPU model Polaris 21 G80
GPU variant Polaris 21 PRO
Architecture GCN 4.0 Tesla
Foundry GlobalFoundries TSMC
Manufacturing process 14 nm 90 nm
Number of transistors 3,000 million 681 million
Die size 123 mm² 484 mm²

Mobile graphics

Release date Jun 5th, 2017
Generation Radeon Pro Mac (500 Series)
Production Active
Interface PCIe 3.0 x8

Clocks

GPU clock 850 MHz 600 MHz
Memory clock 1275 MHz 5.1 Gbps effective 800 MHz 1600 Mbps effective
Shader clock 1350 MHz

Memory Configuration

Memory size 2 GB 1536 MB
Memory type GDDR5 GDDR3
Memory bus width 128 bit 384 bit
Bandwidth 81.60 GB/s 76.80 GB/s

Render Configuration

Shading units 768 128
TMUs 48 32
ROPs 16 24
Compute units 12
Cache L1 16 KB (per CU)
Cache L2 1024 KB 96 KB
SM count 16

Performance

Pixel rate 13.60 GPixel/s 14.40 GPixel/s
Texture rate 40.80 GTexel/s 38.40 GTexel/s
FP16 (half) performance 1,306 GFLOPS (1:1)
FP32 (float) performance 1,306 GFLOPS 345.6 GFLOPS
FP64 (double) performance 81.60 GFLOPS (1:16)

Dimensions & Outputs

Slot width IGP Dual-slot
TDP 75 W 171 W
Outputs No outputs No outputs
Power connectors None 2x 6-pin
Suggested PSU 450 W
Board number P357

API Support & Features

DirectX 12 (12_0) 11.1 (10_0)
OpenGL 4.6 3.3
OpenCL 2.1 1.1 (1.0)
Vulkan 1.2
Shader model 6.4 4.0
CUDA 1.0

Other Features

Graphics Card

Release date May 2nd, 2007
Generation Tesla
Production End-of-life
Launch price 1,499 USD
Interface PCIe 1.0 x16

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